EP1493605A2 - Contrôle de la recirculation de vapeur pendant le remplissage d'un réservoir avec un buse de distribution à travers un tube de remplissage - Google Patents

Contrôle de la recirculation de vapeur pendant le remplissage d'un réservoir avec un buse de distribution à travers un tube de remplissage Download PDF

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Publication number
EP1493605A2
EP1493605A2 EP04014224A EP04014224A EP1493605A2 EP 1493605 A2 EP1493605 A2 EP 1493605A2 EP 04014224 A EP04014224 A EP 04014224A EP 04014224 A EP04014224 A EP 04014224A EP 1493605 A2 EP1493605 A2 EP 1493605A2
Authority
EP
European Patent Office
Prior art keywords
valve
tank
flow control
control valve
disposing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04014224A
Other languages
German (de)
English (en)
Other versions
EP1493605A3 (fr
Inventor
Robert P. Benjey
Craig H. Allman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Corp
Original Assignee
Eaton Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eaton Corp filed Critical Eaton Corp
Publication of EP1493605A2 publication Critical patent/EP1493605A2/fr
Publication of EP1493605A3 publication Critical patent/EP1493605A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/035—Fuel tanks characterised by venting means
    • B60K15/03519—Valve arrangements in the vent line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/035—Fuel tanks characterised by venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets

Definitions

  • the present invention relates to systems for controlling the recirculation of fuel vapor from the vapor dome in a tank to the filler tube for controlling operation of the automatic nozzle shutoff when the level of fuel in the tank reaches a predetermined maximum.
  • Fuel vapor recirculation systems have been employed in motor vehicle fuel tank installations for accommodating the reduced pressure in the region surrounding the liquid discharge from the dispensing nozzle during refueling and particularly where a mechanical seal is provided about the nozzle upon insertion in the filler tube for preventing fuel vapors escaping to the atmosphere during refueling.
  • the system must therefore maintain a proper balance of vapor flow to the canister and to the filler tube regions surrounding the nozzle in order to maintain the integrity of the system in preventing escape of fuel vapor to the atmosphere and also to facilitate proper filling from the refueling nozzle and prevent premature activation of the automatic shutoff device provided in the nozzle.
  • the present invention provides a solution to the above-described problem and employs a vapor recirculation valve responsive to the pressure in a fuel tank filler tube region surrounding a dispensing nozzle seal during refueling for controlling the amount of vapor recirculated to the filler tube nozzle region.
  • a differential pressure responsive valve opens to increase the amount of vapor recirculated to the filler tube nozzle region when a predetermined vacuum or negative pressure is encountered in the region surrounding the nozzle during refueling.
  • the differential pressure responsive valve is preferably combined in a common housing with a float operated valve which serves to close the vapor recirculation line when the fuel level in the tank has reached a predetermined level, or in the event of vehicle rollover.
  • the valve of the present invention is operable for providing a first or relatively low rate of flow when the valve is in the closed condition.
  • the valve Upon the valve experiencing a predetermined pressure differential between the pressure in the filler tube and the pressure in the tank vapor dome, the valve opens and provides a second significantly increased or relatively high rate of vapor flow for recirculation.
  • the differential pressure responsive valve employs a moveable obturator with a passage therethrough for providing the first rate of flow.
  • FIG. 1 is a schematic of a fuel tank vapor control system employing the valve assembly of the present invention for controlling vapor recirculation to the filler tube during refueling;
  • FIG. 2 is a cross-sectional view of the control valve for recirculation of the embodiment of FIG. 1.
  • the fuel tank vapor emission system is indicated generally at 10 and includes a fuel tank 12 filled with liquid fuel to a level L and having a filler tube 14 connected through a wall of the tank.
  • a nozzle receiving cup 16 is provided and preferably formed at the upper end of the filler tube with a flexible seal 18 disposed therein for sealing about a dispensing nozzle 20 upon insertion therein.
  • the tank 20 includes a fuel pump/level sender module indicated generally at 22 which has a pump 24 and a level sender 26 immersed in the fuel.
  • a vapor storage line 28 communicates through the module with the vapor dome 30 within the tank and above the liquid fuel, which line is connected to a storage device 32 which may comprise a canister filled with adsorbent material such as granulated charcoal.
  • the module 22 has a vapor recirculation line 34 connected thereto which is also connected to the cup 16 and the upper end of the filler tube at a location downstream of the nozzle seal 18.
  • a vapor storage line 28 is connected to a float operated valve 38 which serves to close the line 28 upon the level L of the fuel rising to the full mark in the tank. It will be understood that valve 38 also closes in the event of a vehicle rollover.
  • a second valve assembly indicated generally at 40 is connected to recirculation line 34 and functions as will hereinafter be described.
  • valve assembly 40 includes a two-stage vacuum or differential pressure operated valve indicated generally at 42 and a float operated valve indicated generally at 44 preferably mounted in a common housing 46 with valve 42.
  • Float operated valve 44 includes a valve seat 48 formed in the housing within an enlarged diameter portion 50 and includes a float 52 having a valving surface 54 provided on the upper end thereof for closing against the valve seat 48 in response to the level L of the fuel in the tank reaching the float 52 through aperture 53 provided in housing 50. It will be understood valve 44 also closes in the event of a vehicle rollover.
  • the float is calibrated by a buoyancy spring 56 provided within the portion 50 of the housing in a manner known in the art.
  • the two-stage flow control valve 42 has a fitting 58 which is adapted to be connected to the recirculation line 34 (not shown in FIG. 2) with an outlet passage 60 formed therein communicating with an enlarged diameter chamber 62.
  • a moveable obturator 64 is slidably disposed therein and which has a valving surface 66 formed on the lower end thereof for movement with respect to valve seat 68 formed in the chamber 62.
  • a reduced diameter or limited flow passage 70 is formed through the obturator 64 and provides for limited or a relatively low rate of flow to the outlet passage 60 when the obturator is closed against valve seat 68.
  • the upper end of the obturator 64 has a piston portion 72 which closely interfits with bore 74 formed in the chamber 62 for sliding movement therein. It will be understood that the piston 72 and the valving surface 66 are removed in response to differential pressure forces acting across the piston 72 such as those created by a vacuum being formed in the cup 16.
  • a typical nozzle 20 having a vacuum shutoff mechanism therein (not shown), activated by vacuum within the region of cup 16 below the seal 18 acting through a port 76 provided in the nozzle.
  • the pressure in the cup in the space below seal 18 runs at about 0.5 kPa sub-atmospheric depression or vacuum; and, the more common nozzles are set to shut off when the vacuum is in the range of about 1.75 to 2.5 kPa.
  • These settings represent a fuel vapor flow through conduit 34 of about six liters per minute.
  • the fuel flow discharging from the nozzle creates a greater depression or vacuum within the cup 16.
  • a vacuum level of about one kPa differential pressure is created between the space within the cup 16 and the vapor pressure within the tank dome 30; and this causes obturator 64 to move upwardly opening valve seat 68 to permit greater flow.
  • valve 42 may be changed to accommodate different regional nozzle configurations as may be required.
  • the present invention thus provides for controlling the recirculation of fuel vapor to a filler tube to prevent creation of a relatively strong vacuum in the filler tube and from causing premature shutoff of the vacuum actuated mechanism in the dispensing nozzle.
  • the vacuum operated flow control valve for vapor recirculation of the present invention may conveniently be combined in a common housing with a float operated rollover shutoff valve.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
EP04014224A 2003-07-02 2004-06-17 Contrôle de la recirculation de vapeur pendant le remplissage d'un réservoir avec un buse de distribution à travers un tube de remplissage Withdrawn EP1493605A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/612,748 US7055556B2 (en) 2003-07-02 2003-07-02 Controlling vapor recirculation during refueling of a tank through a filler tube from a dispensing nozzle
US612748 2003-07-02

Publications (2)

Publication Number Publication Date
EP1493605A2 true EP1493605A2 (fr) 2005-01-05
EP1493605A3 EP1493605A3 (fr) 2007-10-31

Family

ID=33435463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04014224A Withdrawn EP1493605A3 (fr) 2003-07-02 2004-06-17 Contrôle de la recirculation de vapeur pendant le remplissage d'un réservoir avec un buse de distribution à travers un tube de remplissage

Country Status (7)

Country Link
US (1) US7055556B2 (fr)
EP (1) EP1493605A3 (fr)
JP (1) JP4517346B2 (fr)
KR (1) KR101002145B1 (fr)
AU (1) AU2004202625A1 (fr)
BR (1) BRPI0402595A (fr)
CA (1) CA2472709A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009022587A1 (de) * 2009-05-26 2010-12-02 GM Global Technology Operations, Inc., Detroit Entlüftungssystem für einen Kraftstoffbehälter eines Kraftfahrzeuges
WO2011073690A1 (fr) * 2009-12-18 2011-06-23 Moretech International Limited Améliorations apportées ou se rapportant au remplissage du réservoir à carburant d'un véhicule

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7225798B2 (en) * 2005-05-31 2007-06-05 Sentec E&E Co., Ltd. Device combing fuel control valve and carbon canister, or fuel tank
JP2007176357A (ja) * 2005-12-28 2007-07-12 Togo Seisakusho Corp 燃料タンク用逆止弁
DE102008020400A1 (de) * 2008-04-24 2009-10-29 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Kraftstofftank
US8447495B2 (en) 2010-05-28 2013-05-21 Ford Global Technologies, Llc Method and system for fuel vapor control
US8056540B2 (en) * 2010-05-28 2011-11-15 Ford Global Technologies, Llc Method and system for fuel vapor control
US8019525B2 (en) * 2010-05-28 2011-09-13 Ford Global Technologies, Llc Method and system for fuel vapor control
DE102011106663A1 (de) * 2011-07-05 2013-01-24 Volkswagen Aktiengesellschaft Fluidbehälter mit Einfüllrohr
JP6399278B2 (ja) * 2013-08-27 2018-10-03 三菱自動車工業株式会社 車両の燃料タンク装置
JP6292102B2 (ja) * 2014-11-12 2018-03-14 トヨタ自動車株式会社 燃料供給装置
US9732706B2 (en) 2015-08-12 2017-08-15 Ford Global Technologies, Llc System and methods for regulating fuel vapor flow in a fuel vapor recirculation line
US10301166B2 (en) 2016-10-07 2019-05-28 Ford Global Technologies, Llc Systems and methods for controlling vehicle refueling
US10994605B2 (en) 2018-08-29 2021-05-04 Ford Global Technologies, Llc Systems and methods for reducing vehicle evaporative emissions
CN114585849B (zh) 2019-10-08 2023-07-14 戴科知识产权控股有限责任公司 具有可更换限流孔板的快速连接件

Citations (2)

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Publication number Priority date Publication date Assignee Title
US5417240A (en) 1993-11-08 1995-05-23 G.T. Products, Inc. Cap sensitive head valve for vehicle fuel system
EP1052130A2 (fr) 1999-05-10 2000-11-15 Stant Manufacturing Inc. Régulateur de pression d'embout de remplissage

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US4714172A (en) * 1986-12-23 1987-12-22 Gt Development Corporation Vapor recovery systems
JPH0752744Y2 (ja) * 1989-04-19 1995-12-06 富士重工業株式会社 燃料タンク装置
US5215132A (en) * 1991-05-31 1993-06-01 Nissan Motor Co., Ltd. Valve device for fuel tank
US5282497A (en) * 1992-10-23 1994-02-01 Allen Allison Fuel delivery and vapor control system for controlling the release of fuel vapors from a vehicle fuel tank
US5606954A (en) * 1993-12-22 1997-03-04 Honda Giken Kogyo Kabushiki Kaisha Evaporative fuel processing device
JPH07293360A (ja) * 1994-04-27 1995-11-07 Honda Motor Co Ltd 蒸発燃料処理装置
US5570672A (en) * 1994-07-28 1996-11-05 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Fuel evaporative emission treatment system
US5590697A (en) * 1994-08-24 1997-01-07 G. T. Products, Inc. Onboard vapor recovery system with two-stage shutoff valve
JPH08177650A (ja) * 1994-12-26 1996-07-12 Nissan Motor Co Ltd フューエルタンクの燃料蒸気処理装置
JP2920226B2 (ja) * 1994-12-28 1999-07-19 本田技研工業株式会社 蒸発燃料放出抑制装置
JPH1018921A (ja) * 1996-06-28 1998-01-20 Suzuki Motor Corp 内燃機関の蒸発燃料制御装置
US6708713B1 (en) * 1999-04-16 2004-03-23 Tesma International Inc. Fill limit control valve assembly having a liquid fuel trap
KR100401564B1 (ko) * 2000-12-23 2003-10-11 현대자동차주식회사 자동차 연료탱크의 증발가스 억제장치
JP3536289B2 (ja) * 2001-08-21 2004-06-07 本田技研工業株式会社 蒸発燃料放出抑制装置及びこれに使われる蒸発燃料通路
US20030056837A1 (en) * 2001-09-26 2003-03-27 Eaton Corporation Controlling fuel tank vapor venting during refueling
US20030140970A1 (en) * 2002-01-31 2003-07-31 Benjey Robert P. Method and system for controlling liquid fuel and vapor flow during refueling of a motor vehicle fuel tank

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5417240A (en) 1993-11-08 1995-05-23 G.T. Products, Inc. Cap sensitive head valve for vehicle fuel system
EP1052130A2 (fr) 1999-05-10 2000-11-15 Stant Manufacturing Inc. Régulateur de pression d'embout de remplissage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009022587A1 (de) * 2009-05-26 2010-12-02 GM Global Technology Operations, Inc., Detroit Entlüftungssystem für einen Kraftstoffbehälter eines Kraftfahrzeuges
WO2011073690A1 (fr) * 2009-12-18 2011-06-23 Moretech International Limited Améliorations apportées ou se rapportant au remplissage du réservoir à carburant d'un véhicule

Also Published As

Publication number Publication date
US20050000590A1 (en) 2005-01-06
BRPI0402595A (pt) 2005-05-17
JP2005023938A (ja) 2005-01-27
AU2004202625A1 (en) 2005-01-20
CA2472709A1 (fr) 2005-01-02
US7055556B2 (en) 2006-06-06
EP1493605A3 (fr) 2007-10-31
KR101002145B1 (ko) 2010-12-17
KR20050004061A (ko) 2005-01-12
JP4517346B2 (ja) 2010-08-04

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